  (START (ROOT (S (NP (NP (NP (Det every)
                                (Noun sandwich))
                            (PP (Prep with)
                                (NP (Det a)
                                    (Noun pickle))))
                                (PP (Prep on)
                                    (NP (Det the)
                                        (Noun floor))))
                             (VP (Verb wanted)
                                 (NP (Det a)
                                     (Noun president))))
                  .))
